/**
 * Copyright (c) 2009, 3BitSOftware
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of the 3BitSoftware nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY 3BitSoftware ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.threebitsoftware.tbb.module.map;

import java.net.MalformedURLException;
import java.net.URL;

import org.apache.log4j.Logger;

/**
 * GoogleMapUrl formats the provided source and destination to fit Google Map's
 * direction url.  "http://maps.google.com/maps?saddr=" is Google's unique http
 * url string.  For mapquest, it is different therefore this class is created
 * to handle different map services available
 * */
public class GoogleMapUrl implements MapInterface {
	private URL url;
	private static Logger mapLogger = Logger.getLogger(GoogleMapUrl.class);
	
	/**
	 * default Constructor
	 */
	public GoogleMapUrl() {
		
	}
	
	/**
	 * Converts the source and destination addresses to a valid direction url 
	 * for Google Maps
	 * 
	 * @param original
	 * @param destination
	 * @return void
	 */
	@Override
	public void formatUrl(String original, String destination) {
		try {
			this.url = new URL("http://maps.google.com/maps?saddr=" + 
					original.replace(" ", "+") + "&daddr=" + 
						destination.replace(" ", "+"));
		} catch(MalformedURLException ex){
			mapLogger.error("Invalid URL with:\n" + original + "\n" 
					+ destination,ex);
		}
	}
	
	/**
	 * Converts the formated URL to a string
	 * @return String
	 */
	public String toString() {
		return url.toString();
	}
}
